What Causes Rotten Egg-Tasting Burps?

Egg burps can be caused by a person eating sulfa containing foods, such as red meat, coffee and dairy products. They may also be a sign of a gastrointestinal infection. In an infection, the burps might be accompanied by vomiting and diarrhea. Some prescription medication may cause sulfur burps. In some cases, these burps may be a sign of a more serious condition, such as, Crohn's disease, celiacs disease, irritable bowel syndrome or pancreatitis.